CVE-2023-42344

HIGH

Alkacon OpenCms before 10.5.1 allows remote unauthenticated attackers to obtain sensitive information via a cmis-online/query XXE attack on a Chemistry servlet.

Affects 0 products across 1 vendor.

CVSS 3.17.3
EPSS2.2%
Percentile82th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component.
CWE Weakness Definitions
CWE-611: CWE-611
Related Attack Patterns (CAPEC)
CAPEC-221 Data Serialization External Entities Blowup
via CWE-611

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

A vulnerability in Alkacon OpenCms before version 10.5.1 allows remote unauthenticated attackers to obtain sensitive information through a CMIS-online/ query XXE attack on a Chemistry servlet.

BSID: BS-2026-GLOBAL-344970-H • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2023-42344?
A vulnerability in Alkacon OpenCms before version 10.5.1 allows remote unauthenticated attackers to obtain sensitive information through a CMIS-online/ query XXE attack on a Chemistry servlet.
What is the CVSS score for CVE-2023-42344?
CVE-2023-42344 has CVSS 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L. EPSS: 2.2%.
Is CVE-2023-42344 actively exploited?
No confirmed active exploitation of CVE-2023-42344 as of 2026-09-25.
How do I remediate CVE-2023-42344?
Priority: HIGH.
What systems are affected by CVE-2023-42344?
CVE-2023-42344 affects Alkacon.
Vulnerability Details
CVE IDCVE-2023-42344
BSIDBS-2026-GLOBAL-344970-H BreachSpider Global ID
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Published2026-05-08
Last Modified2026-06-17
ICS Relevance0%
Weakness (CWE)
CWE-611
SourceNVD
Official Description

Alkacon OpenCms before 10.5.1 allows remote unauthenticated attackers to obtain sensitive information via a cmis-online/query XXE attack on a Chemistry servlet.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

The attack vector involves sending a specially crafted XML request to the CMIS-online/query endpoint, which is vulnerable to XML External Entity (XXE) attacks. This can lead to the disclosure of sensitive information stored within the system.

Exploitation Likelihood: MEDIUM

Affected Products
VendorProductAffected Versions
Alkacon — —
Remediation

No official vendor advisory link on record. See the CVE record →

Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 161 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Model/workspace/models/qwen2.5-coder-32b-instruct-bf16
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hash64ae6594b6c2cff02487792839f05965d96cee9c6621e01abf903b61e1b3cc601207ae2f0e3b0d8f8d00b6721952178a4adca0a46ae6f6ab6654398655d0095a
Related CVEs affecting Alkacon
CVE-2018-8811 8.8 Cross-site request forgery (CSRF) vulnerability in system/workplace/admin/acc... CVE-2019-11819 7.8 Alkacon OpenCMS v10.5.4 and before is affected by CSV (aka Excel Macro) Injec... CVE-2023-42346 7.5 Alkacon OpenCms before 16 allows XXE when the <!DOCTYPE> refers to an external host. CVE-2005-4475 6.8 Cross-site scripting (XSS) vulnerability in OpenCms 6.0.3 and earlier allows ... CVE-2006-3935 6.5 system/workplace/views/admin/admin-main.jsp in Alkacon OpenCms before 6.2.2 d...
View all Alkacon CVEs →

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